Pressure converter
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- Convert to the base unit (pascal): 1 × 6,894.757293 = 6,894.757293.
- Divide by the size of the target unit: 6,894.757293 ÷ 100,000 = 0.06894757293 bar.
| Unit | Equals |
|---|---|
| pascal (Pa) | 1 Pa = 1 pascals |
| kilopascal (kPa) | 1 kPa = 1,000 pascals |
| megapascal (MPa) | 1 MPa = 1,000,000 pascals |
| bar (bar) | 1 bar = 100,000 pascals |
| standard atmosphere (atm) | 1 atm = 101,325 pascals |
| pound per square inch (psi) | 1 psi = 6,894.757293 pascals |
| millimetre of mercury (mmHg) | 1 mmHg = 133.3223874 pascals |
| torr (Torr) | 1 Torr = 133.3223684 pascals |
| inch of mercury (inHg) | 1 inHg = 3,386.38864 pascals |
How to use it
The pascal is the SI unit (one newton per square metre). One bar is exactly 100,000 Pa, one standard atmosphere exactly 101,325 Pa, one psi exactly 6,894.757293168 Pa and one mmHg 133.322387415 Pa. Tyre and gas pressures are often given in psi or bar.
Frequently asked questions
How many psi are in a bar?
About 14.5038 psi.
How many kPa is 1 atmosphere?
101.325 kPa.
How many pascals are in a bar?
100,000.
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
Written by Calculators Free Editorial Team · Data checked 2026-11-12
About · How we verify this · Editorial policy · Corrections
About · How we verify this · Editorial policy · Corrections
General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.